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Millward DJ. Post-natal muscle growth and protein turnover: a narrative review of current understanding. Nutr Res Rev 2024; 37:141-168. [PMID: 37395180 DOI: 10.1017/s0954422423000124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
A model explaining the dietary-protein-driven post-natal skeletal muscle growth and protein turnover in the rat is updated, and the mechanisms involved are described, in this narrative review. Dietary protein controls both bone length and muscle growth, which are interrelated through mechanotransduction mechanisms with muscle growth induced both from stretching subsequent to bone length growth and from internal work against gravity. This induces satellite cell activation, myogenesis and remodelling of the extracellular matrix, establishing a growth capacity for myofibre length and cross-sectional area. Protein deposition within this capacity is enabled by adequate dietary protein and other key nutrients. After briefly reviewing the experimental animal origins of the growth model, key concepts and processes important for growth are reviewed. These include the growth in number and size of the myonuclear domain, satellite cell activity during post-natal development and the autocrine/paracrine action of IGF-1. Regulatory and signalling pathways reviewed include developmental mechanotransduction, signalling through the insulin/IGF-1-PI3K-Akt and the Ras-MAPK pathways in the myofibre and during mechanotransduction of satellite cells. Likely pathways activated by maximal-intensity muscle contractions are highlighted and the regulation of the capacity for protein synthesis in terms of ribosome assembly and the translational regulation of 5-TOPmRNA classes by mTORC1 and LARP1 are discussed. Evidence for and potential mechanisms by which volume limitation of muscle growth can occur which would limit protein deposition within the myofibre are reviewed. An understanding of how muscle growth is achieved allows better nutritional management of its growth in health and disease.
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Affiliation(s)
- D Joe Millward
- Department of Nutritional Sciences, School of Biosciences & Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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Ishido M. Cyclin D3 Colocalizes with Myogenin and p21 in Skeletal Muscle Satellite Cells during Early-Stage Functional Overload. Acta Histochem Cytochem 2023; 56:111-119. [PMID: 38318102 PMCID: PMC10838632 DOI: 10.1267/ahc.23-00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/09/2023] [Indexed: 02/07/2024] Open
Abstract
Myogenic cell differentiation is modulated by multiple regulatory factors, such as myogenin, p21, and cyclin D3 during myogenesis in vitro. It is also recognized that myogenin and p21 play important roles in regulating muscle satellite cell (SC) differentiation during overload-induced muscle hypertrophy in vivo. However, the expression patterns and functional role of cyclin D3 in the progress of muscle hypertrophy remain unclear. Thus, the present study investigated cyclin D3 expression in skeletal muscles during early-stage functional overload. Plantaris muscles were exposed to functional overload due to ablation of the gastrocnemius and soleus muscles. As a result, cyclin D3 expression was detected in the nuclei of SCs but not in myonuclei on day 1 after surgery. Cyclin D3 expression, after functional overload, gradually increased, reaching a maximum on day 7 along with myogenin expression. Moreover, in response to the functional overload, cyclin D3 was expressed simultaneously with myogenin and p21 in SC nuclei. Therefore, the present study suggests that cyclin D3 with myogenin and p21 may interactively regulate SC differentiation during early-stage functional overload.
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Affiliation(s)
- Minenori Ishido
- Section for Health-related Physical Education, Division of Human Sciences, Faculty of Engineering, Osaka Institute of Technology, Osaka 535–8585, Japan
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3
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Sudo M, Kano Y, Ando S. The effects of environmental enrichment on voluntary physical activity and muscle mass gain in growing rats. Front Physiol 2023; 14:1265871. [PMID: 37841318 PMCID: PMC10568076 DOI: 10.3389/fphys.2023.1265871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction: Environmental enrichment (EE) for rodents involves housing conditions that facilitate enhanced sensory, cognitive, and motor stimulation relative to standard housing conditions. A recent study suggested that EE induces muscle hypertrophy. However, it remains unclear whether muscle hypertrophy in EE is associated with voluntary physical activity, and the characteristics of muscle adaptation to EE remain unclarified. Therefore, this study investigated whether muscle adaptation to EE is associated with voluntary physical activity, and assessed the changes in the muscle fiber-type distribution and fiber-type-specific cross-sectional area in response to EE. Methods: Wistar rats (6 weeks of age) were randomly assigned to either the standard environment group (n = 10) or the EE group (n = 10). The voluntary physical activity of rats housed in EE conditions was measured using a recently developed three-axis accelerometer. After exposure to the standard or enriched environment for 30 days, the tibialis anterior, extensor digitorum longus, soleus, plantaris, and gastrocnemius muscles were removed and weighed. Immunohistochemistry analysis was performed on the surface (anterior) and deep (posterior) areas of the tibialis anterior and soleus muscles. Results and discussion: The EE group showed increased voluntary physical activity during the dark period compared with the standard environment group (p = 0.005). EE induced muscle mass gain in the soleus muscle (p = 0.002) and increased the slow-twitch muscle fiber cross-sectional area of the soleus muscle (p = 0.025). EE also increased the distribution of high-oxidative type IIa fibers of the surface area (p = 0.001) and type I fibers of the deep area (p = 0.037) of the tibialis anterior muscle. These findings suggest that EE is an effective approach to induce slow-twitch muscle fiber hypertrophy through increased daily voluntary physical activity.
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Affiliation(s)
- Mizuki Sudo
- Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare, Tokyo, Japan
| | - Yutaka Kano
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Japan
| | - Soichi Ando
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Japan
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Brzoska E, Kalkowski L, Kowalski K, Michalski P, Kowalczyk P, Mierzejewski B, Walczak P, Ciemerych MA, Janowski M. Muscular Contribution to Adolescent Idiopathic Scoliosis from the Perspective of Stem Cell-Based Regenerative Medicine. Stem Cells Dev 2020; 28:1059-1077. [PMID: 31170887 DOI: 10.1089/scd.2019.0073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a relatively frequent disease within a range 0.5%-5.0% of population, with higher frequency in females. While a resultant spinal deformity is usually medically benign condition, it produces far going psychosocial consequences, which warrant attention. The etiology of AIS is unknown and current therapeutic approaches are symptomatic only, and frequently inconvenient or invasive. Muscular contribution to AIS is widely recognized, although it did not translate to clinical routine as yet. Muscle asymmetry has been documented by pathological examinations as well as systemic muscle disorders frequently leading to scoliosis. It has been also reported numerous genetic, metabolic and radiological alterations in patients with AIS, which are linked to muscular and neuromuscular aspects. Therefore, muscles might be considered an attractive and still insufficiently exploited therapeutic target for AIS. Stem cell-based regenerative medicine is rapidly gaining momentum based on the tremendous progress in understanding of developmental biology. It comes also with a toolbox of various stem cells such as satellite cells or mesenchymal stem cells, which could be transplanted; also, the knowledge acquired in research on regenerative medicine can be applied to manipulation of endogenous stem cells to obtain desired therapeutic goals. Importantly, paravertebral muscles are located relatively superficially; therefore, they can be an easy target for minimally invasive approaches to treatment of AIS. It comes in pair with a fast progress in image guidance, which allows for precise delivery of therapeutic agents, including stem cells to various organs such as brain, muscles, and others. Summing up, it seems that there is a link between AIS, muscles, and stem cells, which might be worth of further investigations with a long-term goal of setting foundations for eventual bench-to-bedside translation.
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Affiliation(s)
- Edyta Brzoska
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Lukasz Kalkowski
- 2Department of Neurology and Neurosurgery, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Kamil Kowalski
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Pawel Michalski
- 3Spine Surgery Department, Institute of Mother and Child, Warsaw, Poland
| | - Pawel Kowalczyk
- 4Department of Neurosurgery, Children's Memorial Health Institute, Warsaw, Poland
| | - Bartosz Mierzejewski
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Piotr Walczak
- 5Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland.,6Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Maria A Ciemerych
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Miroslaw Janowski
- 5Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland.,6Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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Pulik Ł, Mierzejewski B, Ciemerych MA, Brzóska E, Łęgosz P. The Survey of Cells Responsible for Heterotopic Ossification Development in Skeletal Muscles-Human and Mouse Models. Cells 2020; 9:cells9061324. [PMID: 32466405 PMCID: PMC7349686 DOI: 10.3390/cells9061324] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/16/2020] [Accepted: 05/21/2020] [Indexed: 12/18/2022] Open
Abstract
Heterotopic ossification (HO) manifests as bone development in the skeletal muscles and surrounding soft tissues. It can be caused by injury, surgery, or may have a genetic background. In each case, its development might differ, and depending on the age, sex, and patient's conditions, it could lead to a more or a less severe outcome. In the case of the injury or surgery provoked ossification development, it could be, to some extent, prevented by treatments. As far as genetic disorders are concerned, such prevention approaches are highly limited. Many lines of evidence point to the inflammatory process and abnormalities in the bone morphogenetic factor signaling pathway as the molecular and cellular backgrounds for HO development. However, the clear targets allowing the design of treatments preventing or lowering HO have not been identified yet. In this review, we summarize current knowledge on HO types, its symptoms, and possible ways of prevention and treatment. We also describe the molecules and cells in which abnormal function could lead to HO development. We emphasize the studies involving animal models of HO as being of great importance for understanding and future designing of the tools to counteract this pathology.
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Affiliation(s)
- Łukasz Pulik
- Department of Orthopaedics and Traumatology, Medical University of Warsaw, Lindley 4 St, 02-005 Warsaw, Poland;
| | - Bartosz Mierzejewski
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096 Warsaw, Poland; (B.M.); (M.A.C.)
| | - Maria A. Ciemerych
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096 Warsaw, Poland; (B.M.); (M.A.C.)
| | - Edyta Brzóska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096 Warsaw, Poland; (B.M.); (M.A.C.)
- Correspondence: (E.B.); (P.Ł.); Tel.: +48-22-5542-203 (E.B.); +48-22-5021-514 (P.Ł.)
| | - Paweł Łęgosz
- Department of Orthopaedics and Traumatology, Medical University of Warsaw, Lindley 4 St, 02-005 Warsaw, Poland;
- Correspondence: (E.B.); (P.Ł.); Tel.: +48-22-5542-203 (E.B.); +48-22-5021-514 (P.Ł.)
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Agüera E, Castilla S, Luque E, Jimena I, Ruz-Caracuel I, Leiva-Cepas F, Peña J. Denervated muscle extract promotes recovery of muscle atrophy through activation of satellite cells. An experimental study. JOURNAL OF SPORT AND HEALTH SCIENCE 2019; 8:23-31. [PMID: 30719380 PMCID: PMC6349589 DOI: 10.1016/j.jshs.2017.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/31/2017] [Accepted: 03/26/2017] [Indexed: 06/09/2023]
Abstract
PURPOSE The objective of the present study was to determine whether a denervated muscle extract (DmEx) could stimulate satellite cell response in denervated muscle. METHODS Wistar rats were divided into 4 groups: normal rats, normal rats treated with DmEx, denervated rats, and denervated rats treated with DmEx. The soleus muscles were examined using immunohistochemical techniques for proliferating cell nuclear antigen, desmin, and myogenic differentiation antigen (MyoD), and electron microscopy was used for analysis of the satellite cells. RESULTS The results indicate that while denervation causes activation of satellite cells, DmEx also induces myogenic differentiation of cells localized in the interstitial space and the formation of new muscle fibers. Although DmEx had a similar effect in nature on innervated and denervated muscles, this response was of greater magnitude in denervated vs. intact muscles. CONCLUSION Our study shows that treatment of denervated rats with DmEx potentiates the myogenic response in atrophic denervated muscles.
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Affiliation(s)
- Eduardo Agüera
- Department of Neurology, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - Salvador Castilla
- Department of Critical Care and Emergency, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - Evelio Luque
- Department of Morphological Sciences, Section of Histology, Faculty of Medicine and Nursing, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - Ignacio Jimena
- Department of Morphological Sciences, Section of Histology, Faculty of Medicine and Nursing, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - Ignacio Ruz-Caracuel
- Department of Morphological Sciences, Section of Histology, Faculty of Medicine and Nursing, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - Fernando Leiva-Cepas
- Department of Morphological Sciences, Section of Histology, Faculty of Medicine and Nursing, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
| | - José Peña
- Department of Morphological Sciences, Section of Histology, Faculty of Medicine and Nursing, Maimonides Institute for Biomedical Research IMIBIC, Reina Sofia University Hospital, University of Cordoba, Cordoba 14004, Spain
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Cheng X, Huang H, Luo X, Shi B, Li J. Wnt7a induces satellite cell expansion, myofiber hyperplasia and hypertrophy in rat craniofacial muscle. Sci Rep 2018; 8:10613. [PMID: 30006540 PMCID: PMC6045621 DOI: 10.1038/s41598-018-28917-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/25/2018] [Indexed: 02/05/2023] Open
Abstract
Craniofacial muscles drive critical functions in the head, including speech, feeding and expression. Compared with their counterparts in trunk and limbs, craniofacial muscles are of distinct embryonic origins, which might consequently lead to different growth patterns and regenerative potential. In this study, rat levator veli palatini muscle and masseter muscle were compared with tibialis anterior muscle in their response to exogenous Wnt7a stimulus, which has been proved effective in promoting muscle regeneration in the limbs. Histological, cellular and molecular analyses were performed both under basal condition and after a single dose injection of recombinant human Wnt7a. Under basal condition, levator veli palatini muscle demonstrated considerably more satellite cells than the others. After Wnt7a administration, regeneration-related activities, including satellite cell expansion, myofiber hyperplasia and hypertrophy were generally observed in all three muscles, but with obvious differences in the extent. The composition of fast/slow myofibers underwent substantial alterations, and the pattern varied among the three muscles. Location-specific alterations in the expression level of core components in planar cell polarity pathway, Akt/mTOR pathway and myostatin pathway were also observed. In conclusion, both craniofacial and limb muscles could be effectively expanded by exogenous Wnt7a stimulus, but muscle-to-muscle variations in response patterns existed.
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Affiliation(s)
- Xu Cheng
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Ren Min Nan Road, Chengdu, 610041, P. R. China
| | - Hanyao Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Ren Min Nan Road, Chengdu, 610041, P. R. China
| | - Xiangyou Luo
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Ren Min Nan Road, Chengdu, 610041, P. R. China
| | - Bing Shi
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Ren Min Nan Road, Chengdu, 610041, P. R. China
| | - Jingtao Li
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Ren Min Nan Road, Chengdu, 610041, P. R. China.
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Cheng X, Song L, Lan M, Shi B, Li J. Morphological and molecular comparisons between tibialis anterior muscle and levator veli palatini muscle: A preliminary study on their augmentation potential. Exp Ther Med 2017; 15:247-253. [PMID: 29375687 PMCID: PMC5763646 DOI: 10.3892/etm.2017.5391] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 09/14/2017] [Indexed: 02/05/2023] Open
Abstract
Tibialis anterior (TA) muscle and other somite-derived limb muscles remain the prototype in skeletal muscle study. The majority of head muscles, however, develop from branchial arches and maintain a number of heterogeneities in comparison with their limb counterparts. Levator veli palatini (LVP) muscle is a deep-located head muscle responsible for breathing, swallowing and speech, and is central to cleft palate surgery, yet lacks morphological and molecular investigation. In the present study, multiscale in vivo analyses were performed to compare TA and LVP muscle in terms of their myofiber composition, in-situ stem cell population and augmentation potential. TA muscle was identified to be primarily composed of type 2B myofibers while LVP muscle primarily consisted of type 2A and 2X myofibers. In addition, LVP muscle maintained a higher percentage of centrally-nucleated myofibers and a greater population of satellite cells. Notably, TA and LVP muscle responded to exogenous Wnt7a stimulus in different ways. Three weeks after Wnt7a administration, TA muscle exhibited an increase in myofiber number and a decrease in myofiber size, while LVP muscle demonstrated no significant changes in myofiber number or myofiber size. These results suggested that LVP muscle exhibits obvious differences in comparison with TA muscle. Therefore, knowledge acquired from TA muscle studies requires further testing before being applied to LVP muscle.
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Affiliation(s)
- Xu Cheng
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lei Song
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Min Lan
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bing Shi
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jingtao Li
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Dey D, Goldhamer DJ, Yu PB. Contributions of muscle-resident progenitor cells to homeostasis and disease. CURRENT MOLECULAR BIOLOGY REPORTS 2015; 1:175-188. [PMID: 29075589 PMCID: PMC5654566 DOI: 10.1007/s40610-015-0025-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Adult skeletal muscle maintains a homeostatic state with modest levels of cellular turnover, unlike the skin or blood. However, the muscle is highly sensitive to tissue injury, which unleashes a cascade of regenerative and inflammatory processes. Muscle regeneration involves cross-talk between numerous cytokine signaling axes, and the coordinated activity of multiple muscle-resident and circulating progenitor populations. Satellite cells, closely associated with myofibers, are established as the canonical muscle stem cell, with self-renewal and myofiber-regenerating capacity. However, a heterogeneous group of mesenchymal progenitor cells residing within the muscle interstitium are also highly responsive to muscle injury and exhibit varying degrees of regenerative potential. These cells interact with satellite cells via direct and indirect mechanisms to regulate regeneration or repair. We describe the known phylogenetic and functional relationships of the multiple progenitor populations residing within skeletal muscle, their putative roles in the coordination of injury repair, and their possible contributions to health and disease.
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Affiliation(s)
- Devaveena Dey
- Department of Medicine, Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA 02115-6119, USA
| | - David J. Goldhamer
- Department of Molecular and Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269-3125, USA
| | - Paul B. Yu
- Department of Medicine, Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA 02115-6119, USA
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Tanaka S, Kawahara E, Nakagawa T. Myogenic cell response to muscle contraction with short electrical stimulation. J Phys Ther Sci 2015; 27:2349-52. [PMID: 26311981 PMCID: PMC4540879 DOI: 10.1589/jpts.27.2349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 04/16/2015] [Indexed: 01/16/2023] Open
Abstract
[Purpose] The present study aimed to determine the effects of short muscle strength exercise on hepatocyte growth factor expression and satellite cell activation. [Subjects] The study included 72 2-12-week-old male Sprague-Dawley rats. [Methods] The rat plantaris muscle was contracted with a 5-min electrical stimulation of the sciatic nerve, and then, the mRNA expressions of hepatocyte growth factor and myogenic regulatory factors in the plantaris muscle were determined, and the phosphorylation of the hepatocyte growth factor receptor (c-Met) was examined. [Results] The mRNA expressions of hepatocyte growth factor and myogenic regulatory factors increased after a short muscle contraction compared to that un-contraction. Immunofluorescence analysis showed the expression of hepatocyte growth factor protein and the possibility that downstream biological changes occurred in the hepatocyte growth factor-bound c-Met. [Conclusion] Our results demonstrated that activation of satellite cells induced hepatocyte growth factor expression during muscle contraction with a short 5-min electrical stimulation, which simulates short muscle strength exercise in physical therapy. The present study provides evidence for the use of short muscle strength exercise in physical therapy.
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Affiliation(s)
- Shoji Tanaka
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Ei Kawahara
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Takao Nakagawa
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
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Apoptosis, proliferation, and cell size in seasonal changes of body and organ weight in male bank voles Myodes glareolus. MAMMAL RES 2015. [DOI: 10.1007/s13364-015-0224-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Tamaki T, Soeda S, Hashimoto H, Saito K, Sakai A, Nakajima N, Masuda M, Fukunishi N, Uchiyama Y, Terachi T, Mochida J. 3D reconstitution of nerve-blood vessel networks using skeletal muscle-derived multipotent stem cell sheet pellets. Regen Med 2014; 8:437-51. [PMID: 23826698 DOI: 10.2217/rme.13.30] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To cover the large tissue deficits associated with significant loss of function following surgery, a 3D gel-patch-like nerve-vascular reconstitution system was developed using the skeletal muscle-derived multipotent stem cell (Sk-MSC) sheet pellet. MATERIALS & METHODS The Sk-MSC sheet pellet was prepared from GFP transgenic mice by the collagenase extraction and 7 days expansion cell culture, and transplanted into a severe muscle damage model with large disruptions to muscle fibers, blood vessels and peripheral nerves. RESULTS At 4 weeks after transplantation, engrafted cells contributed to nerve-vascular regeneration associated with cellular differentiation into Schwann cells, perineurial/endoneurial cells, vascular endothelial cells and pericytes. However, skeletal myogenic differentiation was scarcely observed. Paracrine effects regarding donor cells/tissues could also be expected, because of the active expression of neurogenic and vasculogenic factor mRNAs in the sheet pellet. CONCLUSION These results indicate that the vigorous skeletal myogenic potential of Sk-MSCs was clearly reduced in the sheet pellet preparation and this method may be a useful adjuvant for nerve-vascular regeneration in various tissue engineering applications.
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology & Cell Biology Unit, Department of Regenerative Medicine, Division of Basic Clinical Science, Tokai University School of Medicine, 143-Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Alvarado M, Lara-García M, Cuevas E, Berbel P, Pacheco P. Denervation and Castration Effects on the Cross-Sectional Area of Pubococcygeus Muscle Fibers in Male Rats. Anat Rec (Hoboken) 2013; 296:1634-9. [DOI: 10.1002/ar.22760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 05/02/2013] [Accepted: 05/25/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Mayvi Alvarado
- Instituto de Neuroetología, Universidad Veracruzana; Xalapa Veracruz Mexico
| | - Miguel Lara-García
- Instituto de Neuroetología, Universidad Veracruzana; Xalapa Veracruz Mexico
| | - Estela Cuevas
- Centro Tlaxcala Biología de la Conducta, Universidad Autónoma de Tlaxcala; Tlaxcala Mexico
| | - Pere Berbel
- Instituto de Neurociencias; Universidad Miguel Hernández; Alicante Spain
| | - Pablo Pacheco
- Instituto de Neuroetología, Universidad Veracruzana; Xalapa Veracruz Mexico
- Instituto de Investigaciones Biomédicas; Universidad Nacional Autónoma de México; D.F. Mexico
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Judson RN, Zhang RH, Rossi FMA. Tissue-resident mesenchymal stem/progenitor cells in skeletal muscle: collaborators or saboteurs? FEBS J 2013; 280:4100-8. [PMID: 23763717 DOI: 10.1111/febs.12370] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/17/2013] [Accepted: 05/28/2013] [Indexed: 12/11/2022]
Abstract
Although the regenerative potential of adult skeletal muscle is maintained by satellite cells, other stem/progenitor cell populations also reside in skeletal muscle. These heterogeneous cellular pools with mesenchymal lineage potentially play important roles in tissue homeostasis, with reciprocal collaborations between these cells and satellite cells appearing critical for effective regeneration. However, in disease settings, these mesenchymal stem/progenitors adopt a more sinister role - likely providing a major source of fibrosis, fatty tissue and extracellular matrix protein deposition in dystrophic tissue. Development of therapies for muscle degeneration therefore requires complete understanding of the multiple cell types involved and their complex interactions.
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Affiliation(s)
- Robert N Judson
- Biomedical Research Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.
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15
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Abstract
Adult skeletal muscle in mammals is a stable tissue under normal circumstances but has remarkable ability to repair after injury. Skeletal muscle regeneration is a highly orchestrated process involving the activation of various cellular and molecular responses. As skeletal muscle stem cells, satellite cells play an indispensible role in this process. The self-renewing proliferation of satellite cells not only maintains the stem cell population but also provides numerous myogenic cells, which proliferate, differentiate, fuse, and lead to new myofiber formation and reconstitution of a functional contractile apparatus. The complex behavior of satellite cells during skeletal muscle regeneration is tightly regulated through the dynamic interplay between intrinsic factors within satellite cells and extrinsic factors constituting the muscle stem cell niche/microenvironment. For the last half century, the advance of molecular biology, cell biology, and genetics has greatly improved our understanding of skeletal muscle biology. Here, we review some recent advances, with focuses on functions of satellite cells and their niche during the process of skeletal muscle regeneration.
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Affiliation(s)
- Hang Yin
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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16
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Hübner S, Efthymiadis A. Recent progress in histochemistry and cell biology. Histochem Cell Biol 2012; 137:403-57. [PMID: 22366957 DOI: 10.1007/s00418-012-0933-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2012] [Indexed: 01/06/2023]
Abstract
Studies published in Histochemistry and Cell Biology in the year 2011 represent once more a manifest of established and newly sophisticated techniques being exploited to put tissue- and cell type-specific molecules into a functional context. The review is therefore the Histochemistry and Cell Biology's yearly intention to provide interested readers appropriate summaries of investigations touching the areas of tissue biology, developmental biology, the biology of the immune system, stem cell research, the biology of subcellular compartments, in order to put the message of such studies into natural scientific-/human- and also pathological-relevant correlations.
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Affiliation(s)
- Stefan Hübner
- Institute of Anatomy and Cell Biology, University of Würzburg, Würzburg, Germany.
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17
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Smith HK, Merry TL. Voluntary resistance wheel exercise during post-natal growth in rats enhances skeletal muscle satellite cell and myonuclear content at adulthood. Acta Physiol (Oxf) 2012; 204:393-402. [PMID: 21854550 DOI: 10.1111/j.1748-1716.2011.02350.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
AIM To determine whether voluntary free wheel (FW) or resistance wheel (RW) exercise or reduced muscle activity would influence maturational increases in muscle mass and the number of satellite cells (SCs) and myonuclei (MN) accrued by adulthood. METHODS Hind limb muscles of male rats housed with, or without, FWs from 4 to 5, 7 or 10 weeks of age, and rats housed with RWs from 4 to 10 week of age, were evaluated. To assess the effect of reduced muscle activity, gastrocnemius muscles of 4-week-old rats were injected with botulinum toxin (Btx) and collected at 7 weeks of age. Muscle fibre size and the frequency of Pax7-positive SCs and MN were determined in 7- and 10-week-old muscles via immunohistochemical methods. RESULTS Free wheel exercise enhanced muscle growth and the frequency of SCs in the medial gastrocnemius (MG) (threefold) and vastus lateralis (VL) (twofold) of rats at 10 week of age. Resistance wheel exercise increased the number of SCs and MN (22-30%), with more muscle fibre nuclei being associated with larger fibre size, in the soleus, MG and VL muscles. Btx impaired the normal increases in muscle fibre size and the accrual of MN but not SCs. CONCLUSION A greater volume of exercise during maturational growth was important for enhancing SC numbers, whereas their conversion to MN required higher-intensity exercise. The enhanced muscle fibre nuclear populations may influence the capacity of the muscle to adapt to exercise, injury or disuse in later adulthood.
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Affiliation(s)
- H K Smith
- Department of Sport and Exercise Science, University of Auckland, New Zealand.
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18
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Valero MC, Huntsman HD, Liu J, Zou K, Boppart MD. Eccentric exercise facilitates mesenchymal stem cell appearance in skeletal muscle. PLoS One 2012; 7:e29760. [PMID: 22253772 PMCID: PMC3256189 DOI: 10.1371/journal.pone.0029760] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 12/03/2011] [Indexed: 01/13/2023] Open
Abstract
Eccentric, or lengthening, contractions result in injury and subsequently stimulate the activation and proliferation of satellite stem cells which are important for skeletal muscle regeneration. The discovery of alternative myogenic progenitors in skeletal muscle raises the question as to whether stem cells other than satellite cells accumulate in muscle in response to exercise and contribute to post-exercise repair and/or growth. In this study, stem cell antigen-1 (Sca-1) positive, non-hematopoetic (CD45-) cells were evaluated in wild type (WT) and α7 integrin transgenic (α7Tg) mouse muscle, which is resistant to injury yet liable to strain, 24 hr following a single bout of eccentric exercise. Sca-1+CD45− stem cells were increased 2-fold in WT muscle post-exercise. The α7 integrin regulated the presence of Sca-1+ cells, with expansion occurring in α7Tg muscle and minimal cells present in muscle lacking the α7 integrin. Sca-1+CD45− cells isolated from α7Tg muscle following exercise were characterized as mesenchymal-like stem cells (mMSCs), predominantly pericytes. In vitro multiaxial strain upregulated mMSC stem cells markers in the presence of laminin, but not gelatin, identifying a potential mechanistic basis for the accumulation of these cells in muscle following exercise. Transplantation of DiI-labeled mMSCs into WT muscle increased Pax7+ cells and facilitated formation of eMHC+DiI− fibers. This study provides the first demonstration that mMSCs rapidly appear in skeletal muscle in an α7 integrin dependent manner post-exercise, revealing an early event that may be necessary for effective repair and/or growth following exercise. The results from this study also support a role for the α7 integrin and/or mMSCs in molecular- and cellular-based therapeutic strategies that can effectively combat disuse muscle atrophy.
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MESH Headings
- Animals
- Antigens, CD/metabolism
- Ataxin-1
- Ataxins
- Biomarkers/metabolism
- Cell Proliferation/drug effects
- Cell Separation
- Connective Tissue Cells/cytology
- Female
- Gelatin/pharmacology
- Integrin alpha Chains/metabolism
- Laminin/metabolism
- Leukocyte Common Antigens/metabolism
- Mesenchymal Stem Cells/cytology
- Mesenchymal Stem Cells/drug effects
- Mesenchymal Stem Cells/metabolism
- Mice
- Mice, Transgenic
- Multipotent Stem Cells/cytology
- Multipotent Stem Cells/drug effects
- Muscle Development/drug effects
- Muscle Fibers, Skeletal/cytology
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/metabolism
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/cytology
- Muscle, Skeletal/drug effects
- Nerve Tissue Proteins/metabolism
- Nuclear Proteins/metabolism
- PAX7 Transcription Factor/metabolism
- Pericytes/cytology
- Pericytes/drug effects
- Physical Conditioning, Animal
- Stem Cell Transplantation
- Stress, Mechanical
- Up-Regulation/drug effects
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Affiliation(s)
- M. Carmen Valero
- Department of Kinesiology and Community Health, and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois, United States of America
| | - Heather D. Huntsman
- Department of Kinesiology and Community Health, and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois, United States of America
| | - Jianming Liu
- Department of Kinesiology and Community Health, and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois, United States of America
| | - Kai Zou
- Department of Kinesiology and Community Health, and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois, United States of America
| | - Marni D. Boppart
- Department of Kinesiology and Community Health, and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois, United States of America
- * E-mail:
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19
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Tamaki T. Multipotency and physiological role of skeletal muscle interstitium-derived stem cells. JOURNAL OF PHYSICAL FITNESS AND SPORTS MEDICINE 2012. [DOI: 10.7600/jpfsm.1.423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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White JD, Grounds MD. Harnessing the therapeutic potential of myogenic stem cells. Cytotechnology 2011; 41:153-64. [PMID: 19002952 DOI: 10.1023/a:1024830924103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The potential clinical use of stem cells for cell transplantation therapies to replace defective genes in myopathies is an area of intense investigation. Precursor cells derived from non-muscle tissue with myogenic potential have been identified in many tissues, including bone marrow and dermis, although the status of these putative stem cells requires clarification. The incorporation of circulating bone-marrow derived stem cells into regenerating adult skeletal muscle has been demonstrated in mice but the contribution of donor cells is so minimal that it would appear clinically irrelevant at this stage. The possibility of a true stem cell subpopulation within skeletal muscle that replenishes the satellite cells (conventional muscle precursors on the surface of myofibres) is also very attractive as a superior source of myoblasts for muscle construction. A full understanding of the intrinsic factors (i.e. gene expression within the stem cell) and extrinsic factors (i.e. signals from the external environment) which control the commitment of stem cells to the myogenic lineage, and the conditions which favour stem cell expansion in vivo is required before stem cells can be seriously considered for clinical cell therapy.
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Affiliation(s)
- Jason D White
- School of Anatomy and Human Biology, The University of Western Australia, Crawley, Perth, Western Australia, Australia (Author for correspondence; E-mail,
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21
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Potential sources of early-postnatal increase in myofibre number in pig skeletal muscle. Histochem Cell Biol 2011; 136:217-25. [DOI: 10.1007/s00418-011-0833-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2011] [Indexed: 10/18/2022]
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22
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IL-6 induced STAT3 signalling is associated with the proliferation of human muscle satellite cells following acute muscle damage. PLoS One 2011; 6:e17392. [PMID: 21408055 PMCID: PMC3052298 DOI: 10.1371/journal.pone.0017392] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Accepted: 02/02/2011] [Indexed: 12/03/2022] Open
Abstract
Background Although the satellite cell (SC) is a key regulator of muscle growth during development and muscle adaptation following exercise, the regulation of human muscle SC function remains largely unexplored. STAT3 signalling mediated via interleukin-6 (IL-6) has recently come to the forefront as a potential regulator of SC proliferation. The early response of the SC population in human muscle to muscle-lengthening contractions (MLC) as mediated by STAT3 has not been studied. Methodology/Principal Findings Twelve male subjects (21±2 y; 83±12 kg) performed 300 maximal MLC of the quadriceps femoris at 180°•s−1 over a 55° range of motion with muscle samples (vastus lateralis) and blood samples (antecubital vein) taken prior to exercise (PRE), 1 hour (T1), 3 hours (T3) and 24 hours (T24) post-exercise. Cytoplasmic and nuclear fractions of muscle biopsies were purified and analyzed for total and phosphorylated STAT3 (p-STAT3) by western blot. p-STAT3 was detected in cytoplasmic fractions across the time course peaking at T24 (p<0.01 vs. PRE). Nuclear total and p-STAT3 were not detected at appreciable levels. However, immunohistochemical analysis revealed a progressive increase in the proportion of SCs expressing p-STAT3 with ∼60% of all SCs positive for p-STAT3 at T24 (p<0.001 vs. PRE). Additionally, cMyc, a STAT3 downstream gene, was significantly up-regulated in SCs at T24 versus PRE (p<0.05). Whole muscle mRNA analysis revealed induction of the STAT3 target genes IL-6, SOCS3, cMyc (peaking at T3, p<0.05), IL-6Rα and GP130 (peaking at T24, p<0.05). In addition, Myf5 mRNA was up-regulated at T24 (p<0.05) with no appreciable change in MRF4 mRNA. Conclusions/Significant Findings We demonstrate that IL-6 induction of STAT3 signaling occurred exclusively in the nuclei of SCs in response to MLC. An increase in the number of cMyc+ SCs indicated that human SCs were induced to proliferate under the control of STAT3 signaling.
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23
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Tamaki T, Tono K, Uchiyama Y, Okada Y, Masuda M, Soeda S, Nitta M, Akatsuka A. Origin and hierarchy of basal lamina-forming and -non-forming myogenic cells in mouse skeletal muscle in relation to adhesive capacity and Pax7 expression in vitro. Cell Tissue Res 2011; 344:147-68. [PMID: 21274567 DOI: 10.1007/s00441-010-1127-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 12/17/2010] [Indexed: 01/06/2023]
Abstract
As a novel approach to distinguish skeletal myogenic cell populations, basal lamina (BL) formation of myogenic cells was examined in the mouse compensatory enlarged plantaris muscles in vivo and in fiber-bundle cultures in vitro. MyoD(+) myogenic cells located inside the regenerative muscle fiber BL were laminin(-) but interstitial MyoD(+) cells were laminin(+). This was also confirmed by electron microscopy as structural BL formation. Similar trends were observed in the fiber-bundle cultures including satellite cells and interstitial myogenic cells and laminin(+) myogenic cells predominantly showed non-adhesive (non-Ad) behavior with Pax7(-), whereas laminin(-) cells were adhesive (Ad) with Pax7(+). Moreover, non-Ad/laminin(+) and Ad/laminin(-) myotubes were also observed and the former type showed spontaneous contractions, while the latter type did not. The origin and hierarchy of Ad/Pax7(+)/laminin(-) and non-Ad/Pax7(-)/laminin(+) myogenic cells were also examined using skeletal muscle interstitium-derived CD34(+)/45(-) (Sk-34) and CD34(-)/45(-) (Sk-DN) multipotent stem cells, which were composed of non-committed myogenic cells with a few (<1%) Pax7(+) cells in the Sk-DN cells at fresh isolation. Both cell types were separated by Ad/non-Ad capacity in repetitive culture. As expected, both Ad/Pax7(+)/laminin(-) and non-Ad/Pax7(-)/laminin(+) myogenic cells consistently appeared in the Ad and non-Ad cell culture. However, Ad/Pax7(+)/laminin(-) cells were repeatedly detected in the non-Ad cell culture, while the opposite phenomenon did not occur. This indicates that the source of non-Ad/ Pax7(-)/laminin(+) myogenic cells was present in the Sk-34 and Sk-DN stem cells and they were able to produce Ad/ Pax7(+)/ laminin(-) myogenic cells during myogenesis as primary myoblasts and situated hierarchically upstream of the latter cells.
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology and Cell Biology Unit, Department of Regenerative Medicine, Division of Basic Clinical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
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24
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Mitchell KJ, Pannérec A, Cadot B, Parlakian A, Besson V, Gomes ER, Marazzi G, Sassoon DA. Identification and characterization of a non-satellite cell muscle resident progenitor during postnatal development. Nat Cell Biol 2010; 12:257-66. [PMID: 20118923 DOI: 10.1038/ncb2025] [Citation(s) in RCA: 311] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 01/14/2010] [Indexed: 02/06/2023]
Abstract
Satellite cells are resident myogenic progenitors in postnatal skeletal muscle involved in muscle postnatal growth and adult regenerative capacity. Here, we identify and describe a population of muscle-resident stem cells, which are located in the interstitium, that express the cell stress mediator PW1 but do not express other markers of muscle stem cells such as Pax7. PW1(+)/Pax7(-) interstitial cells (PICs) are myogenic in vitro and efficiently contribute to skeletal muscle regeneration in vivo as well as generating satellite cells and PICs. Whereas Pax7 mutant satellite cells show robust myogenic potential, Pax7 mutant PICs are unable to participate in myogenesis and accumulate during postnatal growth. Furthermore, we found that PICs are not derived from a satellite cell lineage. Taken together, our findings uncover a new and anatomically identifiable population of muscle progenitors and define a key role for Pax7 in a non-satellite cell population during postnatal muscle growth.
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MESH Headings
- Actins/metabolism
- Animals
- Animals, Newborn
- Antigens, CD34/metabolism
- Antigens, Ly/metabolism
- Cell Count
- Cell Differentiation/physiology
- Cell Lineage
- Cell Proliferation
- Ki-67 Antigen/metabolism
- Kruppel-Like Transcription Factors/metabolism
- Membrane Proteins/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Nude
- Mice, Transgenic
- Microfilament Proteins/metabolism
- Muscle Development/physiology
- Muscle Fibers, Skeletal/cytology
- Muscle Fibers, Skeletal/metabolism
- Muscle Proteins/metabolism
- Muscle, Skeletal/cytology
- Muscle, Skeletal/growth & development
- Muscle, Skeletal/physiology
- MyoD Protein/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Myosin Heavy Chains/metabolism
- PAX3 Transcription Factor
- PAX7 Transcription Factor/genetics
- PAX7 Transcription Factor/metabolism
- Paired Box Transcription Factors/genetics
- Proteins/genetics
- RNA, Untranslated
- Regeneration/physiology
- Satellite Cells, Skeletal Muscle/cytology
- Satellite Cells, Skeletal Muscle/metabolism
- Satellite Cells, Skeletal Muscle/transplantation
- Stem Cell Transplantation
- Stem Cells/cytology
- Stem Cells/metabolism
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Affiliation(s)
- Kathryn J Mitchell
- Myology Group, UMR S 787 INSERM, Université Pierre et Marie Curie Paris VI, Paris, 75634, France
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25
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Tamaki T, Uchiyama Y, Okada Y, Tono K, Nitta M, Hoshi A, Akatsuka A. Multiple stimulations for muscle–nerve–blood vessel unit in compensatory hypertrophied skeletal muscle of rat surgical ablation model. Histochem Cell Biol 2009; 132:59-70. [DOI: 10.1007/s00418-009-0585-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2009] [Indexed: 10/21/2022]
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26
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Tamaki T, Uchiyama Y, Okada Y, Tono K, Nitta M, Hoshi A, Akatsuka A. Anabolic-androgenic steroid does not enhance compensatory muscle hypertrophy but significantly diminish muscle damages in the rat surgical ablation model. Histochem Cell Biol 2009; 132:71-81. [DOI: 10.1007/s00418-009-0584-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2009] [Indexed: 11/24/2022]
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27
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Tamaki T, Okada Y, Uchiyama Y, Tono K, Masuda M, Nitta M, Hoshi A, Akatsuka A. Skeletal muscle-derived CD34+/45- and CD34-/45- stem cells are situated hierarchically upstream of Pax7+ cells. Stem Cells Dev 2008; 17:653-67. [PMID: 18554087 DOI: 10.1089/scd.2008.0070] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The hierarchical relationship of skeletal muscle-derived multipotent stem cells sorted as CD34(+)/CD45(-) (Sk-34) and CD34(-)/CD45(-) (Sk-DN) cells, which have synchronized reconstitution capacities for blood vessels, peripheral nerves, and muscle fibers, was examined. Expression of Sca-1 and CD34 (typical state of freshly isolated Sk-34 cells) in Sk-DN cells was examined using in vitro culture and in vivo cell implantation. Sk-DN cells sequentially expressed Sca-1 and CD34 during cell culture showing self-maintenance and/or self-renewal-like behavior, and are thus considered hierarchically upstream of Sk-34 cells in the same lineage. Sk-34 and Sk-DN cells were further divided into small and large cell fractions by cell sorting. Immunocytochemistry using anti-Pax7 was performed at the time of isolation (before culture) and revealed that only 1% of cells in the large Sk-DN cell fraction were positive for Pax7, while Sk-34 cells and 99% of Sk-DN cells were negative for Pax7. Therefore, putative satellite cells were possibly present in the large Sk-DN cell fraction. However, serial analysis of Pax7 expression by RT-PCR and immunocytochemistry for single and 2 to >40 clonally proliferated Sk-34 and Sk-DN cells revealed that both cell types expressed Pax7 after several asymmetric cellular divisions during clonal-cell culture. In addition, production of satellite cells was seen after muscle fiber formation following Sk-34 or Sk-DN cell transplantation into damaged muscle, and even in the nonmuscle tissue environment (beneath the renal capsule). Thus, Sk-DN cells are situated upstream of Sk-34 cells and both cells can produce Pax7+ cells (putative satellite cells) after cellular division.
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology and Cell Biology Unit, Department of Regenerative Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, Japan.
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28
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Reconstruction of Radical Prostatectomy-Induced Urethral Damage Using Skeletal Muscle-Derived Multipotent Stem Cells. Transplantation 2008; 85:1617-24. [DOI: 10.1097/tp.0b013e318170572b] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Tamaki T, Akatsuka A, Okada Y, Uchiyama Y, Tono K, Wada M, Hoshi A, Iwaguro H, Iwasaki H, Oyamada A, Asahara T. Cardiomyocyte formation by skeletal muscle-derived multi-myogenic stem cells after transplantation into infarcted myocardium. PLoS One 2008; 3:e1789. [PMID: 18335059 PMCID: PMC2262151 DOI: 10.1371/journal.pone.0001789] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Accepted: 02/11/2008] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Cellular cardiomyoplasty for myocardial infarction has been developed using various cell types. However, complete differentiation and/or trans-differentiation into cardiomyocytes have never occurred in these transplant studies, whereas functional contributions were reported. METHODS AND RESULTS Skeletal muscle interstitium-derived CD34(+)/CD45(-) (Sk-34) cells were purified from green fluorescent protein transgenic mice by flowcytometory. Cardiac differentiation of Sk-34 cells was examined by in vitro clonal culture and co-culture with embryonic cardiomyocytes, and in vivo transplantation into a nude rat myocardial infarction (MI) model (left ventricle). Lower relative expression of cardiomyogenic transcription factors, such as GATA-4, Nkx2-5, Isl-1, Mef2 and Hand2, was seen in clonal cell culture. However, vigorous expression of these factors was seen on co-culture with embryonic cardiomyocytes, together with formation of gap-junctions and synchronous contraction following sphere-like colony formation. At 4 weeks after transplantation of freshly isolated Sk-34 cells, donor cells exhibited typical cardiomyocyte structure with formation of gap-junctions, as well as intercalated discs and desmosomes, between donor and recipient and/or donor and donor cells. Fluorescence in situ hybridization (FISH) analysis detecting the rat and mouse genomic DNA and immunoelectron microscopy using anti-GFP revealed donor-derived cells. Transplanted Sk-34 cells were incorporated into infarcted portions of recipient muscles and contributed to cardiac reconstitution. Significant improvement in left ventricular function, as evaluated by transthoracic echocardiography and micro-tip conductance catheter, was also observed. CONCLUSIONS AND SIGNIFICANCE Skeletal muscle-derived multipotent Sk-34 cells that can give rise to skeletal and smooth muscle cells as reported previously, also give rise to cardiac muscle cells as multi-myogenic stem cells, and thus are a potential source for practical cellular cardiomyoplasty.
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology & Cell Biology Unit, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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30
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Brack AS, Rando TA. Intrinsic changes and extrinsic influences of myogenic stem cell function during aging. ACTA ACUST UNITED AC 2008; 3:226-37. [PMID: 17917136 DOI: 10.1007/s12015-007-9000-2] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 12/29/2022]
Abstract
The myogenic stem cell (satellite cell) is almost solely responsible for the remarkable regeneration of adult skeletal muscle fibers after injury. The availability and the functionality of satellite cells are the determinants of efficient muscle regeneration. During aging, the efficiency of muscle regeneration declines, suggesting that the functionality of satellite cells and their progeny may be altered. Satellite cells do not sit in isolation but rather are surrounded by, and influenced by, many extrinsic factors within the muscle tissue that can alter their functionality. These factors likely change during aging and impart both reversible and irreversible changes to the satellite cells and on their proliferating progeny. In this review, we discuss the possible mechanisms of impaired muscle regeneration with respect to the biology of satellite cells. Future studies that enhance our understanding of the interactions between stem cells and the environment in which they reside will offer promise for therapeutic applications in age-related diseases.
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Affiliation(s)
- Andrew S Brack
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305-5235, USA
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31
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Tamaki T, Okada Y, Uchiyama Y, Tono K, Masuda M, Wada M, Hoshi A, Akatsuka A. Synchronized reconstitution of muscle fibers, peripheral nerves and blood vessels by murine skeletal muscle-derived CD34−/45− cells. Histochem Cell Biol 2007; 128:349-60. [PMID: 17762938 DOI: 10.1007/s00418-007-0331-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2007] [Indexed: 10/22/2022]
Abstract
In order to establish the practical isolation and usage of skeletal muscle-derived stem cells (MDSCs), we determined reconstitution capacity of CD34(-)/CD45(-) (Sk-DN) cells as a candidate somatic stem cell source for transplantation. Sk-DN cells were enzymatically isolated from GFP transgenic mice (C57/BL6N) skeletal muscle and sorted using fluorescence activated cell sorting (FACS), and expanded by collagen gel-based cell culture with bFGF and EGF. The number of Sk-DN cells was small after sorting (2-8 x 10(4)); however, the number increased 10-20 fold (2-16 x 10(5)) after 6 days of expansion culture, and the cells maintained immature state and multipotency, expressing mRNAs for mesodermal and ectodermal cell lineages. Transplantation of expanded Sk-DN cells into the severe muscle damage model (C57/BL6N wild-type) resulted in the synchronized reconstitution of blood vessels, peripheral nerves and muscle fibers following significant recovery of total muscle mass (57%) and contractile function (55%), whereas the non-cell-transplanted control group showed around 20% recovery in both factors. These reconstitution capacities were supported by the intrinsic plasticity of Sk-DN cells that can differentiate into muscular (skeletal muscle), vascular (pericyte, endothelial cell and smooth muscle) and peripheral nerve (Schwann cells and perineurium) cell lineages that was revealed by transplantation to non-muscle tissue (beneath renal capsule) and fluorescence in situ hybridization (FISH) analysis.
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MESH Headings
- Animals
- Antigens, CD34/genetics
- Antigens, CD34/metabolism
- Cell Differentiation
- Cells, Cultured
- Female
- Gene Expression Regulation
- In Situ Hybridization, Fluorescence
- Leukocyte Common Antigens/deficiency
- Leukocyte Common Antigens/genetics
- Leukocyte Common Antigens/metabolism
- Mice
- Mice, Knockout
- Microscopy, Immunoelectron
- Muscle Development
- Muscle Fibers, Skeletal/metabolism
- Muscle Fibers, Skeletal/ultrastructure
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/metabolism
- Peripheral Nerves/metabolism
- RNA, Messenger/genetics
- Rats
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology and Cell Biology Unit, Tokai University School of Medicine, Shimokasuya-143, Isehara, Kanagawa, 259-1143, Japan.
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32
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Tamaki T, Okada Y, Uchiyama Y, Tono K, Masuda M, Wada M, Hoshi A, Ishikawa T, Akatsuka A. Clonal multipotency of skeletal muscle-derived stem cells between mesodermal and ectodermal lineage. Stem Cells 2007; 25:2283-90. [PMID: 17588936 DOI: 10.1634/stemcells.2006-0746] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The differentiation potential of skeletal muscle-derived stem cells (MDSCs) after in vitro culture and in vivo transplantation has been extensively studied. However, the clonal multipotency of MDSCs has yet to be fully determined. Here, we show that single skeletal muscle-derived CD34-/CD45- (skeletal muscle-derived double negative [Sk-DN]) cells exhibit clonal multipotency that can give rise to myogenic, vasculogenic, and neural cell lineages after in vivo single cell-derived single sphere implantation and in vitro clonal single cell culture. Muscles from green fluorescent protein (GFP) transgenic mice were enzymatically dissociated and sorted based on CD34 and CD45. Sk-DN cells were clone-sorted into a 96-well plate and were cultured in collagen-based medium with basic fibroblast growth factor and epidermal growth factor for 14 days. Individual colony-forming units (CFUs) were then transplanted directly into severely damaged muscle together with 1 x 10(5) competitive carrier Sk-DN cells obtained from wild-type mice muscle expanded for 5 days under the same culture conditions using 35-mm culture dishes. Four weeks after transplantation, implanted GFP+ cells demonstrated differentiation into endothelial, vascular smooth muscle, skeletal muscle, and neural cell (Schwann cell) lineages. This multipotency was also confirmed by expression of mRNA markers for myogenic (MyoD, myf5), neural (Musashi-1, Nestin, neural cell adhesion molecule-1, peripheral myelin protein-22, Nucleostemin), and vascular (alpha-smooth muscle actin, smoothelin, vascular endothelial-cadherin, tyrosine kinase-endothelial) stem cells by clonal (single-cell derived) single-sphere reverse transcription-polymerase chain reaction. Approximately 70% of clonal CFUs exhibited expression of all three cell lineages. These findings support the notion that Sk-DN cells are a useful tool for damaged muscle-related tissue reconstitution by synchronized vasculogenesis, myogenesis, and neurogenesis.
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Affiliation(s)
- Tetsuro Tamaki
- Muscle Physiology and Cell Biology Unit, Department of Regenerative Medicine, Division of Basic Clinical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1143, Japan.
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33
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Schultz E, Chamberlain C, McCormick KM, Mozdziak PE. Satellite cells express distinct patterns of myogenic proteins in immature skeletal muscle. Dev Dyn 2007; 235:3230-9. [PMID: 17029285 DOI: 10.1002/dvdy.20976] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Satellite cells are the myogenic cells lying between the myofiber sarcolemma and basal lamina. The objective of this study was to determine the expression patterns of MyoD, myogenin, and Pax7 within the satellite cell population in the growing rat soleus and extensor digitorum longus (EDL) muscles. Secondly, the expression of the myogenic markers was also studied within the interstitial cell compartment and myonuclei. It was discovered that the soleus contained a higher number of Pax7, MyoD, or myogenin-positive nuclei compared with the EDL. Similarly, myogenin was expressed at a lower level in the myonuclei of the soleus compared with the EDL, and myogenin was expressed at a higher level in the interstitial compartment of the soleus compared with the EDL. When interstitial nuclei, myonuclei, and double-labeled nuclei were used in the estimate of the satellite cell population, it was discovered that approximately of 13% of the myofibers in a transverse section of the soleus muscle and 4.1% of EDL myofibers exhibit a labeled satellite cell nucleus. Overall, results from this study suggest that expression patterns of these markers vary predictably among muscles with different growth dynamics and phenotypic characteristics.
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Affiliation(s)
- Edward Schultz
- Department of Anatomy, University of Wisconsin, Madison Wisconsin, USA
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34
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Anderson JE. The satellite cell as a companion in skeletal muscle plasticity: currency, conveyance, clue, connector and colander. ACTA ACUST UNITED AC 2006; 209:2276-92. [PMID: 16731804 DOI: 10.1242/jeb.02088] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Satellite cells are companions to voluntary muscle fibres, and are named for their intimate positional or ;satellite' relationship, as if revolving around fibres, like a satellite moon around the earth. Studies on the nature of at least some satellite cells, including their capabilities for self-renewal and for giving rise to multiple lineages in a stem cell-like function, are exploring the molecular basis of phenotypes described by markers of specialized function and gene expression in normal development, neuromuscular disease and aging. In adult skeletal muscle, the self-renewing capacity of satellite cells contributes to muscle growth, adaptation and regeneration. Muscle remodeling, such as demonstrated by changes in myofibre cross-sectional area and length, nerve and tendon junctions, and fibre-type distribution, occur in the absence of injury and provide broad functional and structural diversity among skeletal muscles. Those contributions to plasticity involve the satellite cell in at least five distinct roles, here described using metaphors for behaviour or the investigator's perspective. Satellite cells are the 'currency' of muscle; have a 'conveyance' role in adaptation by domains of cytoplasm along a myofibre; serve researchers, through a marker role, as 'clues' to various activities of muscle; are 'connectors' that physically, and through signalling and cell-fibre communications, bridge myofibres to the intra- and extra-muscular environment; and are equipped as metabolic and genetic filters or 'colanders' that can rectify or modulate particular signals. While all these roles are still under exploration, each contributes to the plasticity of skeletal muscle and thence to the overall biology and function of an organism. The use of metaphor for describing these roles helps to clarify and scrutinize the definitions that form the basis of our understanding of satellite cell biology: the metaphors provide the construct for various approaches to detect or test the nature of satellite cell functions in skeletal muscle plasticity.
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Affiliation(s)
- Judy E Anderson
- Department of Human Anatomy and Cell Science, Faculty of Medicine, University of Manitoba, Winnipeg, MB, R3E 0W3, Canada.
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35
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Vignaud A, Caruelle JP, Martelly I, Ferry A. Differential effects of post-natal development, animal strain and long term recovery on the restoration of neuromuscular function after neuromyotoxic injury in rat. Comp Biochem Physiol C Toxicol Pharmacol 2006; 143:1-8. [PMID: 16426897 DOI: 10.1016/j.cbpc.2005.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2005] [Revised: 09/07/2005] [Accepted: 09/20/2005] [Indexed: 10/25/2022]
Abstract
We have analysed the effect of long term recovery, post-natal development and animal strain on the extent of restoration of neuromuscular function after neuromyotoxic injury in the rat (Rattus norvegicus). Muscle isometric contractile properties of soleus muscle in response to nerve stimulation were measured in situ in snake venom injured muscles and compared to contralateral uninjured muscles. We show here that neuromuscular function was not fully recovered until 24 weeks after injury in young adult (2-3 month old) Wistar rats. Moreover, the level of functional recovery 3 weeks after injury induced in juvenile rats (1 month old) was not globally different from that in younger adult, adult (10 month old) and older adult (24 month old) Wistar rats. Furthermore, the level of recovery of some contractile parameters differed between Wistar and Sprague-Dawley strains 3 weeks after injury. In conclusion, a very long time (>12 weeks) is required for full neuromuscular recovery following neuromyotoxic injury of young adult rats. Moreover, neuromuscular recovery during post-natal development is not markedly different from that during adult stage in the Wistar rat strain. Finally, some rat strain differences are observed in the recovery after injury of young adult rats.
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Affiliation(s)
- A Vignaud
- Laboratoire d'étude sur la croissance cellulaire, la régénération et la réparation tissulaires, FRE 2412 CNRS, Faculté des Sciences, Université Paris 12, France
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36
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Wozniak AC, Kong J, Bock E, Pilipowicz O, Anderson JE. Signaling satellite-cell activation in skeletal muscle: markers, models, stretch, and potential alternate pathways. Muscle Nerve 2005; 31:283-300. [PMID: 15627266 DOI: 10.1002/mus.20263] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Activation of skeletal muscle satellite cells, defined as entry to the cell cycle from a quiescent state, is essential for normal growth and for regeneration of tissue damaged by injury or disease. This review focuses on early events of activation by signaling through nitric oxide and hepatocyte growth factor, and by mechanical stimuli. The impact of various model systems used to study activation and the regulation of satellite-cell quiescence are placed in the context of activation events in other tissues, concluding with a speculative model of alternate pathways signaling satellite-cell activation.
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Affiliation(s)
- Ashley C Wozniak
- Department of Human Anatomy and Cell Science, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba R3E 0W2, Canada
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Siu PM, Pistilli EE, Butler DC, Alway SE. Aging influences cellular and molecular responses of apoptosis to skeletal muscle unloading. Am J Physiol Cell Physiol 2004; 288:C338-49. [PMID: 15483226 DOI: 10.1152/ajpcell.00239.2004] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The influence of aging on skeletal myocyte apoptosis is not well understood. In this study we examined apoptosis and apoptotic regulatory factor responses to muscle atrophy induced via limb unloading following loading-induced hypertrophy. Muscle hypertrophy was induced by attaching a weight to one wing of young and aged Japanese quails for 14 days. Removing the weight for 7 or 14 days after the initial 14 days of loading induced muscle atrophy. The contralateral wing served as the intra-animal control. A time-released bromodeoxyuridine (BrdU) pellet was implanted subcutaneously with wing weighting to identify activated satellite cells/muscle precursor cells throughout the experimental period. Bcl-2 mRNA and protein levels decreased after 7 days of unloading, but they were unchanged after 14 days of unloading in young muscles. Bcl-2 protein level but not mRNA level decreased after 7 days of unloading in muscles of aged birds. Seven days of unloading increased the mRNA level of Bax in muscles from both young and aged birds. Fourteen days of unloading increased mRNA and protein levels of Bcl-2, decreased protein levels of Bax, and decreased nuclear apoptosis-inducing factor (AIF) protein level in muscles of aged birds. BrdU-positive nuclei were found in all unloaded muscles from both age groups, but the number of BrdU-positive nuclei relative to the total nuclei decreased after 14 days of unloading compared with 7 days of unloading. The TdT-mediated dUTP nick end labeling (TUNEL) index was higher after 7 days of unloading in both young and aged muscles and after 14 days of unloading in aged muscles. Immunofluorescent staining revealed that almost all of the TUNEL-positive nuclei were also BrdU immunopositive, suggesting that activated satellite cell nuclei (both fused and nonfused) underwent nuclear apoptosis during unloading. There were significant correlations among levels of Bcl-2, Bax, and AIF and TUNEL index. Our data are consistent with the hypothesis that apoptosis regulates, at least in part, unloading-induced muscle atrophy and loss of activated satellite cell nuclei in previously loaded muscles. Moreover, these data suggest that aging influences the apoptotic responses to prolonged unloading following hypertrophy in skeletal myocytes.
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Affiliation(s)
- Parco M Siu
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, West Virginia 26506-9227, USA
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38
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Dreyfus PA, Chretien F, Chazaud B, Kirova Y, Caramelle P, Garcia L, Butler-Browne G, Gherardi RK. Adult bone marrow-derived stem cells in muscle connective tissue and satellite cell niches. THE AMERICAN JOURNAL OF PATHOLOGY 2004; 164:773-9. [PMID: 14982831 PMCID: PMC1613267 DOI: 10.1016/s0002-9440(10)63165-3] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Skeletal muscle includes satellite cells, which reside beneath the muscle fiber basal lamina and mainly represent committed myogenic precursor cells, and multipotent stem cells of unknown origin that are present in muscle connective tissue, express the stem cell markers Sca-1 and CD34, and can differentiate into different cell types. We tracked bone marrow (BM)-derived stem cells in both muscle connective tissue and satellite cell niches of irradiated mice transplanted with green fluorescent protein (GFP)-expressing BM cells. An increasing number of GFP+ mononucleated cells, located both inside and outside of the muscle fiber basal lamina, were observed 1, 3, and 6 months after transplantation. Sublaminal cells expressed unambiguous satellite cell markers (M-cadherin, Pax7, NCAM) and fused into scattered GFP+ muscle fibers. In muscle connective tissue there were GFP+ cells located close to blood vessels that expressed the ScaI or CD34 stem-cell antigens. The rate of settlement of extra- and intralaminal compartments by BM-derived cells was compatible with the view that extralaminal cells constitute a reservoir of satellite cells. We conclude that both muscle satellite cells and stem cell marker-expressing cells located in muscle connective tissue can derive from BM in adulthood.
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Ishido M, Kami K, Masuhara M. Localization of MyoD, myogenin and cell cycle regulatory factors in hypertrophying rat skeletal muscles. ACTA ACUST UNITED AC 2004; 180:281-9. [PMID: 14962010 DOI: 10.1046/j.0001-6772.2003.01238.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM MyoD, myogenin, proliferating cell nuclear antigen (PCNA) and cyclin-dependent kinase inhibitor p21 (p21) proteins are key molecules in inducing the growth of myogenic cells in vitro. However, it has not been determined which cell types express these factors in hypertrophying skeletal muscles in vivo. METHODS Using immunohistochemical techniques, we examined the spatial and temporal expression patterns of MyoD, myogenin, PCNA and p21 proteins in functionally overloaded rat plantaris muscles induced by ablation of the soleus and gastrocnemius muscles. RESULTS MyoD and myogenin were detected in myonuclei located inside the dystrophin-positive plasma membrane of myofibres, m-cadherin-positive satellite cell nuclei and nuclei located in the interstitial spaces between myofibres on days 1, 3, 5 and 7 post-surgery. Entry of satellite cells into the cell cycle was indicated by the expression of PCNA on day 3 post-surgery, and withdrawal from the cell cycle was observed by the expression of p21 in satellite cell nuclei on day 5 post-surgery. However, the expression of both PCNA and p21 in satellite cell nuclei disappeared on day 7 post-surgery. CONCLUSION These results indicate that proliferated satellite cell-derived myoblasts and undefined myogenic cells located in the interstitial spaces may contribute to an increase in myonuclear number and/or hyperplasia. Furthermore, we provide evidence that all of myonuclei, satellite cells and undefined myogenic cells express both MyoD and myogenin proteins. These results suggest that continual expression of MyoD and myogenin proteins in these cells is an essential molecular event which induces the successful hypertrophy of skeletal muscles.
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Affiliation(s)
- M Ishido
- Graduate school of Sport and Exercise Science, Osaka University of Health and Sport Sciences, Osaka, Japan
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40
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Muguruma Y, Reyes M, Nakamura Y, Sato T, Matsuzawa H, Miyatake H, Akatsuka A, Itoh J, Yahata T, Ando K, Kato S, Hotta T. In vivo and in vitro differentiation of myocytes from human bone marrow-derived multipotent progenitor cells. Exp Hematol 2004; 31:1323-30. [PMID: 14662341 DOI: 10.1016/j.exphem.2003.09.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Recent studies have shown that bone marrow (BM) contains cells capable of differentiating into myocytes in vivo. However, addition of demethylation drugs has been necessary to induce myocyte differentiation from BM cells in vitro, and precise mechanisms of BM cells' conversion to myocytes and the origin of those cells have not been established. We investigated the expression of myogenic markers during differentiation and maturation of myocytes from BM-derived multipotent adult progenitor cells (MAPC) under physiological culture condition. MATERIALS AND METHODS Frozen BM samples from 21 healthy donors were used as a source of MAPC. To induce myocyte differentiation MAPC was cultured in the presence of 5% FCS, VEGF, bFGF, and IGF-1, and the expressions of myocyte markers were examined at various time points. We also investigated engraftment and differentiation of MAPC-derived myocytes in vivo. RESULTS Frozen BM-derived MAPC, cultured under the physiological myogenic condition, demonstrated spatial expression patterns of several myocyte markers similar to that of authentic myocyte differentiation. When injected into murine muscles, MAPC treated with the myogenic condition engrafted and differentiated into myocyte marker-positive cells and myotubes in vivo. CONCLUSION For the first time, we were able to induce myocyte formation from BM cells under the physiological condition in vitro and demonstrated that treating cells with this condition prior to intramuscular injection increased efficiency of engraftment and differentiation in vivo.
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Affiliation(s)
- Yukari Muguruma
- Division of Hematopoiesis, Research Center for Regenerative Medicine, Tokai University School of Medicine, Boseidai, Isehara, Kanagawa 259-1193, Japan
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41
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Flück M, Kitzmann M, Däpp C, Chiquet M, Booth FW, Fernandez A. Transient induction of cyclin A in loaded chicken skeletal muscle. J Appl Physiol (1985) 2003; 95:1664-71. [PMID: 12819222 DOI: 10.1152/japplphysiol.00276.2003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cell proliferation is believed to contribute to the increased synthesis rate during load-induced growth of avian anterior latissimus dorsi (ALD) skeletal muscle, but the relative contribution of different cell types to this proliferative response and the time course of cell activation are not well documented. The present investigation measured the abundance and localization of cyclin A protein, which is uniquely present in proliferating cells and required for the entry of vertebrate cells into the DNA synthesis phase during the time course of chicken ALD loading. Total protein content in 1.5-, 7-, and 13-day loaded ALD increased by 60, 191, and 294%, respectively. Immunoblotting analysis identified that cyclin A protein per total protein was dramatically increased in ALD muscle after 1.5 days of loading but returned to control level at 7 days. In vitro kinase assays demonstrated a corresponding massive activation of the cyclin A-regulated, cyclin-dependent kinase 2 but not of cyclin-dependent kinase 2 protein level in muscle homogenates after 1.5 days of muscle loading. Immunofluorescence experiments demonstrated that the increase of cyclin A in 1.5 days of loaded ALD was primarily confined to nuclei of interstitial cells (92%) but was also found in fiber-associated cells (8%). In situ hybridization demonstrated an increased number of nuclei of interstitial cells expressing collagen I transcripts after 1.5 days of loading. These data show that the cell cycle protein cyclin A is induced in fiber-associated cells during the early growth response in loaded ALD but also implicate an activation of interstitial cells as playing an early role in this model for muscle growth.
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Affiliation(s)
- Martin Flück
- Dept. of Anatomy, Univ. of Bern, Bühlstrasse 26, 3000 Bern 9, Switzerland.
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Pesce M, Orlandi A, Iachininoto MG, Straino S, Torella AR, Rizzuti V, Pompilio G, Bonanno G, Scambia G, Capogrossi MC. Myoendothelial differentiation of human umbilical cord blood-derived stem cells in ischemic limb tissues. Circ Res 2003; 93:e51-62. [PMID: 12919944 DOI: 10.1161/01.res.0000090624.04507.45] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Human umbilical cord blood (UCB) contains high numbers of endothelial progenitors cells (EPCs) characterized by coexpression of CD34 and CD133 markers. Prior studies have shown that CD34+/CD133+ EPCs from the cord or peripheral blood (PB) can give rise to endothelial cells and induce angiogenesis in ischemic tissues. In the present study, it is shown that freshly isolated human cord blood CD34+ cells injected into ischemic adductor muscles gave rise to endothelial and, unexpectedly, to skeletal muscle cells in mice. In fact, the treated limbs exhibited enhanced arteriole length density and regenerating muscle fiber density. Under similar experimental conditions, CD34- cells did not enhance the formation of new arterioles and regenerating muscle fibers. In nonischemic limbs CD34+ cells increased arteriole length density but did not promote formation of new muscle fibers. Endothelial and myogenic differentiation ability was maintained in CD34+ cells after ex vivo expansion. Myogenic conversion of human cord blood CD34+ cells was also observed in vitro by coculture onto mouse myoblasts. These results show that human cord blood CD34+ cells differentiate into endothelial and skeletal muscle cells, thus providing an indication of human EPCs plasticity. The full text of this article is available online at http://www.circresaha.org.
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Affiliation(s)
- Maurizio Pesce
- Laboratorio di Biologia Vascolare e Terapia Genica, Centro Cardiologico Monzino, IRCCS, Milan, Italy.
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Abstract
Muscle satellite cells are a self-renewing pool of stem cells that give rise to daughter myogenic precursor cells in adult skeletal muscle, where they function in postnatal tissue growth and regeneration. Adult skeletal muscle also contains a novel stem cell population purified as a side population (SP), which actively excludes Hoechst 33342 dye. Muscle SP cells that express the hematopoietic stem cell marker Sca-1 possess the ability to differentiate into hematopoietic cells, skeletal muscle, and satellite cells following transplantation. The muscle SP fraction also contains cells expressing the hematopoietic marker CD45 that are capable of differentiation into hematopoietic cells and muscle cells. Thus, these novel muscle stem cells appear to have characteristics similar to those of hematopoietic stem cells, and can participate in muscle regeneration. This review outlines recent findings regarding different stem cell populations in skeletal muscle, and discusses their involvement in muscle regeneration.
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Affiliation(s)
- Atsushi Asakura
- Ottawa Health Research Institute, Molecular Medicine Program, Ottawa, Ontario, Canada.
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Tamaki T, Akatsuka A, Ando K, Nakamura Y, Matsuzawa H, Hotta T, Roy RR, Edgerton VR. Identification of myogenic-endothelial progenitor cells in the interstitial spaces of skeletal muscle. J Cell Biol 2002; 157:571-7. [PMID: 11994315 PMCID: PMC2173851 DOI: 10.1083/jcb.200112106] [Citation(s) in RCA: 277] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Putative myogenic and endothelial (myo-endothelial) cell progenitors were identified in the interstitial spaces of murine skeletal muscle by immunohistochemistry and immunoelectron microscopy using CD34 antigen. Enzymatically isolated cells were characterized by fluorescence-activated cell sorting on the basis of cell surface antigen expression, and were sorted as a CD34+ and CD45- fraction. Cells in this fraction were approximately 94% positive for Sca-1, and mostly negative (<3% positive) for CD14, 31, 49, 144, c-kit, and FLK-1. The CD34+/45- cells formed colonies in clonal cell cultures and colony-forming units displayed the potential to differentiate into adipocytes, endothelial, and myogenic cells. The CD34+/45- cells fully differentiated into vascular endothelial cells and skeletal muscle fibers in vivo after transplantation. Immediately after sorting, CD34+/45- cells expressed only c-met mRNA, and did not express any other myogenic cell-related markers such as MyoD, myf-5, myf-6, myogenin, M-cadherin, Pax-3, and Pax-7. However, after 3 d of culture, these cells expressed mRNA for all myogenic markers. CD34+/45- cells were distinct from satellite cells, as they expressed Bcrp1/ABCG2 gene mRNA (Zhou et al., 2001). These findings suggest that myo-endothelial progenitors reside in the interstitial spaces of mammalian skeletal muscles, and that they can potentially contribute to postnatal skeletal muscle growth.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/genetics
- ATP-Binding Cassette Transporters/metabolism
- Animals
- Antigens, CD34/metabolism
- Antigens, Surface/metabolism
- Biomarkers
- Cell Differentiation/physiology
- Cells, Cultured
- Endothelium, Vascular/growth & development
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/ultrastructure
- Extracellular Space/metabolism
- Flow Cytometry
- Immunohistochemistry
- Leukocyte Common Antigens/metabolism
- Mice
- Mice, Inbred C57BL
- Microscopy, Electron
- Muscle Proteins/metabolism
- Muscle, Skeletal/growth & development
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/ultrastructure
- Neoplasm Proteins
- Proto-Oncogene Proteins c-met/metabolism
- Stem Cells/metabolism
- Stem Cells/ultrastructure
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Affiliation(s)
- Tetsuro Tamaki
- Department of Physiology, Division of Human Structure and Function, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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